Solve the problem.The expected future population of a small town, which currently has 7200 residents, can be approximated by the formula y = 7200(1.9)-0.2twhere t is the number of years in the future. Find the expected population of the town 40 years in the future.
A. 42
B. 7200
C. 2736
D. 1
Answer: A
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Solve the problem.Starting at point A, a ship sails 75 km on a bearing of 256°, then turns and sails 
on a bearing of 297°. Find the distance of the ship from point A. (Note that bearings are measured from north, clockwise.) Round results to an appropriate number of significant digits.
A. 139 km B. 148 km C. 212 km D. 64 km
Solve the problem. Round your answer to the nearest tenth.A person is pulling a freight cart with a force of 49 pounds. How much work is done in moving the cart 30 feet if the cart's handle makes an angle of 34° with the ground?
A. 1218.7 ft-lb B. 82.2 ft-lb C. 822.0 ft-lb D. 1285.7 ft-lb
Identify the equation as either an identity or not.
= 2 cos 2x
A. Not an identity B. Identity
Solve the inequality. Express your answer using interval notation.|7x + 4| + |-5| ? 8
A. [
, 1]
B. (-?, 
] or [1, ?)
C. [- 1, - 
]
D. (-?, - 1] or [- 
, ?)